Beta Particles

1. Set-up equipment as in the diagram

2. Record the thickness and the material bein

I used callipers to measure the distance that the beta particles were deflected.

The graphs show a linear relationship between the puncture size and distance form AB. I would of expected an squared relation ships because as the diameter increases with a factor, the area would increase with 4 times that factor, so less beta particles would be stopped by the shielding. If I had more time to investigate this I would take more readings and examine the relationship.

If I re-arrange the equation to equal v:

6. Use the 10 second count, move the GM tube until there is a drop in the background count. Change to 100s and move the GM slightly until you just get a back group count.

v = The speed of the beta particle } Constant

The detector I would like to use, if I had more resources available, would be a radioactive sensitive film, because I would see the overall deflection of particles from the experiment and see repulsion force from the negative plate. Also I would be able to measure the distance and ant the deflection more accurately.

Some common words found in the essay are:
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Approximate Word count = 2131
Approximate Pages = 9 (250 words per page double spaced)